If the screen is blank, follow the guide below. If the screen is fuzzy continue reading further down.

Take a flashlight when the computer is turned on, shine it on the screen and look very closely. If you see a a very faint image then you are in luck, it is not the LCD cable that has come loose. it is either:

The inverter

High voltage transformer

The lamps in the screen

The lamps that actually supply the light for the back-light.

There is no way to tell which one is causing the actual problem, or if it is both, so we will start with the easiest and least expensive, replacing the inverter.

If the problem turns out to not be your inverter, then the next step is replacing your lamps.

The easiest way to start would be to hook up your laptop to an external monitor. If your laptop works on the external monitor then you have just saved yourself $150+. If not, then you will need a new graphics card.

If an external monitor or new graphics card don't help, then you will need to see if your LCD cable is loose or damaged and needs to be replaced. If this didn't solve your problem, then you need to replace your LCD screen.

If the resetting your router didn't work in fixing your problem then the problem could be a problem with your WiFi card. First follow the steps in this forum and also contact your internet provider to make sure that the problem isn't your service or the router. Then if all seems to be in order follow this HP HDX 16-1160US Wifi Card Replacement to replace your WiFi card.